Has anybody used the ProMatris pregnancy strips? Did they work well for you? I looked at the ones my mom used and the lines are so faint but she used a FRER as well and the line on that one is soooo much darker. Maybe ProMatris isn't good at early detection even though it's supposedly 10 mlu. Anyone have experience with these at all? I'm trying for a baby, and I'm 12 DPO and it gave me a negative. I know it could still be too early to test.